Obsolete: ReactiveList and its CreateDerivedCollection method were removed in ReactiveUI 9.

CreateDerivedCollection¶

CreateDerivedCollection projected a ReactiveList into another list that stayed in step with the source. Adding, removing or filtering an item in the source updated the derived list automatically. The derived list could also sort and filter on its own terms.

DynamicData's source lists and caches offer the same projections today. That means mapping, filtering and ordering a collection so it updates as its source changes. See DynamicData operators.